CE Chassis Community Project Thread

[ToneMerc]

Mark, what the chassis hole dimensions if one wanted to make relay and or power boards?

Mike

[gilgalad101]

From the chassis run last fall, power board centers are 3.625 x 4.5" and relay centers are 1.75"

[mdroberts1243]

Mark, what the chassis hole dimensions if one wanted to make relay and or power boards?

Mike

Here's a drawing with the hole spacings of the 80's style chassis.

[mdroberts1243]

Here's a relay board I did in 2007. This board fits four relays onto the ExpressPCB 'proto' size board... so for the $50-odd dollars you get twelve relay boards.

When I did this board I was using custom chassis and didn't try to match the mounting hole spacing of the 80's style chassis. The design needs to be reworked for the current chassis mounting hole spacing.

For a group run, the best thing might be to make a single relay board out of this design and buy them in volume already cut up by ExpressPCB.

PS I'm not sure technical discussion is the right place for this thread... I'd be looking to find this kind of stuff in Dumble Files.

[mdroberts1243]

Here's a FET Board... untested... in ExpressPCB.

[mdroberts1243]

Here's a single-relay board... outside dimensions 3/4" x 2" #6 mounting holes centered 1 3/4" apart.

Not laid out in the 'traditional' Dumble way, but I've found this to be a bit more flexible for me, YMMV.

Untested board, just noodling with ExpressPCB from the earlier design.

[odourboy]

Here's a single-relay board... outside dimensions 3/4" x 2" #6 mounting holes centered 1 3/4" apart.

Not laid out in the 'traditional' Dumble way, but I've found this to be a bit more flexible for me, YMMV.

Untested board, just noodling with ExpressPCB from the earlier design.

Just to add - the PCB Express files are untested, but the concept is not. Mark had a prototype run made of board very similar to these a couple of years ago (the 'earlier design' he mentions) for our personal builds and I found this layout with the extra pads, labeling etc to be quite user friendly.